The matters that Allah, the Most Holy, the Most High, and His Messenger صلى الله عليه وعلى آله وسلم have sanctioned as obligatory of the beings with the Imams عليه السلام

4. Muhammad ibn Yahya has narrated from from Muhammad ibn al-Husayn from al-Nadr ibn Shu’ayb from Muhammad ibn al-Fudayl from abu Hamzah al-Thamali who has said that he heard abu Ja’far عليه السلام say, “The Messenger of Allah صلى الله عليه وعلى آله وسلم said: “ Allah, the Most Holy, the Most High, says, “It is to establish my authority over the wicked ones of your people that those who would refuse to acknowledge the Divine authority of Imam Ali عليه السلام and become friend and supporters of the enemies of Ali عليه السلام, refuse to acknowledge his virtuous qualities and the such qualities of his successors after him (Imam Ali عليه السلام. Indeed your excellence and virtues are their excellence and virtues, obedience to you is like obedience to them, your right is like their right and disobedience to you is disobedience to them. They will be the Imams who possess the right guidance after you. Your spirit flows in them and so does the spirit of that which your Lord has made to flow in you. They are members of your family of the substance of which you are made. They are your flesh and blood. Allah عز وجل as made your traditions and the traditions of the prophets before to continue with them (the Imams). They (Imams) are the treasurers of My knowledge after you. It is a right that owe them. I have chosen and give to them nobility exclusively with satisfaction. Salvation will be for those who would love them acknowledge their Divine authority and accept their excellence and virtues. The angel, Jibril has brought for their (Imam’s) names and the names of their fathers, the names of those who would love them and those who would accept their virtues and excellence.”